Tie-Barless Extrusion Blow Molding Machine 30kN Clamping 1L Bottle MP55D
The tie-barless extrusion blow molding machine MP55D removes the four tie bars found on conventional clamps and drives clamping force straight into the centre of the back platen. A short direct-acting cylinder transfers that force to the front platen through alignment rods, which keeps the platens parallel while freeing the space around the mould. For a bottle producer, that open architecture changes how the whole line is operated day to day.
With no tie bars in the way, moulds slide in and out on a straight path and scrap falls cleanly into a collection bin below. Cleaning, inspection and maintenance stop being a reach-around job. The result is less downtime, fewer trapped parts and a safer working area around an otherwise powerful extrusion blow molding machine.
Key Features- Tie-Barless Direct Clamping: force goes straight to the platen centre for parallel, even clamping.
- Quick Mould Change: no tie bars to clear, so moulds load on a straight path in minutes.
- Clean Scrap Collection: the open frame lets offcuts drop into a bin instead of lodging in the clamp.
- Rigid Alignment Rods: maintain platen parallelism through thousands of cycles.
- Safe Service Access: open space around the mould simplifies cleaning and inspection.
- Proven MP-D Series: the same clamp platform used across the MEPER MP-D range.
| Parameter | Specification |
|---|---|
| Model | MP55D tie-barless extrusion blow molder |
| Clamp Type | Direct-acting, tie-barless |
| Clamping Force | 30 kN |
| Opening Stroke | 220 mm |
| Platen Daylight | 350 mm |
| Max Mould Size | 360 x 300 mm |
| Mould Thickness | 130 mm |
| Centre Distance | 2x2 to 2x6 fold |
| Container Range | 5 ml to 1 L |
| Screw Diameter | 55 mm, L/D 24 |
| Total Machine Power | 33.34 kW |
| Machine Size (LxWxH) | 2.87 x 2.14 x 2.35 m |
- Lubricant and motor oil bottles where fast job changes are routine
- High-mix cosmetic and pharmaceutical bottles needing frequent mould swaps
- Detergent and household chemical bottles with tight scrap-control demands
- Job shops running short runs of many bottle shapes on one machine
For plants that change moulds several times a week, clamp design decides throughput more than screw size does. A tie-barless extrusion blow molding machine lets a two-person team swap a mould in minutes, and the unobstructed drop zone keeps regrind clean enough to reuse. That combination lowers material waste and raises the share of productive time in every shift.
Packaging and Quality AssuranceClamping frames are stress-relieved and alignment-checked before assembly. Each MP55D completes a pressure test of the hydraulic circuit and a full dry cycle, then ships on a wooden pallet with an optional crate. MEPER supplies alignment-rod spares, torque tables and a commissioning guide so the tie-barless extrusion blow molding machine holds its platen geometry over years of service.
Frequently Asked QuestionsQ: What does tie-barless clamping mean for daily operation?
A: On a conventional clamp the four tie bars sit beside every mould. Removing them creates clear space on all sides, so operators load and unload moulds on a straight path and offcuts fall straight into a bin. The practical result is faster changeovers and cleaner production around the extrusion blow molding machine.
Q: Does a tie-barless design reduce clamping force?
A: No. The MP55D still applies 30 kN, but it delivers that force directly to the centre of the back platen and transfers it forward through alignment rods. The design keeps the platens parallel while freeing the working area.
Q: Is this extrusion blow molding machine good for short production runs?
A: Yes. Fast, unobstructed mould changes make it well suited to high-mix plants that switch between many bottle shapes. A small team can complete a mould swap in minutes rather than hours.
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